The greatest and most important branch of the commerce of every nation, it has already been observed, is that which is carried on between the inhabitants of the town and those of the country. The inhabitants of the town draw from the country the rude produce, which constitutes both the materials of their work and the fund of their subsistence; and they pay for this rude produce, by sending back to the country a certain portion of it manufactured and prepared for immediate use. The trade which is carried on between these two different sets of people, consists ultimately in a certain quantity of rude produce exchanged for a certain quantity of manufactured produce. The dearer the latter, therefore, the cheaper the former; and whatever tends in any country to raise the price of manufactured produce, tends to lower that of the rude produce of the land, and thereby to discourage agriculture. The smaller the quantity of manufactured produce, which any given quantity of rude produce, or, what comes to the same thing, which the price of any given quantity of rude produce, is capable of purchasing, the smaller the exchangeable value of that given quantity of rude produce; the smaller the encouragement which either the landlord has to increase its quantity by improving, or the farmer by cultivating the land. Whatever, besides, tends to diminish in any country the number of artificers and manufacturers, tends to diminish the home market, the most important of all markets, for the rude produce of the land, and thereby still further to discourage agriculture.
Those systems, therefore, which preferring agriculture to all other employments, in order to promote it, impose restraints upon manufactures and foreign trade, act contrary to the very end which they propose, and indirectly discourage that very species of industry which they mean to promote. They are so far, perhaps, more inconsistent than even the mercantile system. That system, by encouraging manufactures and foreign trade more than agriculture, turns a certain portion of the capital of the society, from supporting a more advantageous, to support a less advantageous species of industry. But still it really, and in the end, encourages that species of industry which it means to promote. Those agricultural systems, on the contrary, really, and in the end, discourage their own favourite species of industry.
It is thus that every system which endeavours, either, by extraordinary encouragements to draw towards a particular species of industry a greater share of the capital of the society than what would naturally go to it, or, by extraordinary restraints, to force from a particular species of industry some share of the capital which would otherwise be employed in it, is, in reality, subversive of the great purpose which it means to promote. It retards, instead of accelerating the progress of the society towards real wealth and greatness; and diminishes, instead of increasing, the real value of the annual produce of its land and labour.
All systems, either of preference or of restraint, therefore, being thus completely taken away, the obvious and simple system of natural liberty establishes itself of its own accord. Every man, as long as he does not violate the laws of justice, is left perfectly free to pursue his own interest his own way, and to bring both his industry and capital into competition with those of any other man, or order of men. The sovereign is completely discharged from a duty, in the attempting to perform which he must always be exposed to innumerable delusions, and for the proper performance of which, no human wisdom or knowledge could ever be sufficient; the duty of superintending the industry of private people, and of directing it towards the employments most suitable to the interests of the society. According to the system of natural liberty, the sovereign has only three duties to attend to; three duties of great importance, indeed, but plain and intelligible to common understandings: first, the duty of protecting the society from the violence and invasion of other independent societies; secondly, the duty of protecting, as far as possible, every member of the society from the injustice or oppression of every other member of it, or the duty of establishing an exact administration of justice; and, thirdly, the duty of erecting and maintaining certain public works, and certain public institutions, which it can never be for the interest of any individual, or small number of individuals to erect and maintain; because the profit could never repay the expense to any individual, or small number of individuals, though it may frequently do much more than repay it to a great society.
The proper performance of those several duties of the sovereign necessarily supposes a certain expense; and this expense again necessarily requires a certain revenue to support it. In the following book, therefore, I shall endeavour to explain, first, what are the necessary expenses of the sovereign or commonwealth; and which of those expenses ought to be defrayed by the general contribution of the whole society; and which of them, by that of some particular part only, or of some particular members of the society: secondly, what are the different methods in which the whole society may be made to contribute towards defraying the expenses incumbent on the whole society; and what are the principal advantages and inconveniencies of each of those methods: and thirdly, what are the reasons and causes which have induced almost all modern governments to mortgage some part of this revenue, or to contract debts; and what have been the effects of those debts upon the real wealth, the annual produce of the land and labour of the society. The following book, therefore, will naturally be divided into three chapters.
APPENDIX TO BOOK IV
The two following accounts are subjoined, in order to illustrate and confirm what is said in the fifth chapter of the fourth book, concerning the Tonnage Bounty to the Whit-herring Fishery. The reader, I believe, may depend upon the accuracy of both accounts.
An account of Busses fitted out in Scotland for eleven Years, with the Number of empty Barrels carried out, and the Number of Barrels of Herrings caught; also the Bounty, at a Medium, on each Barrel of Sea-sricks, and on each Barrel when fully packed.
Years Number of Empty Barrels Barrels of Her- Bounty paid on Busses carried out rings caught the Busses Ј. s. d. 1771 29 5,948 2,832 2,885 0 0 1772 168 41,316 22,237 11,055 7 6 1773 190 42,333 42,055 12,510 8 6 1774 240 59,303 56,365 26,932 2 6 1775 275 69,144 52,879 19,315 15 0 1776 294 76,329 51,863 21,290 7 6 1777 240 62,679 43,313 17,592 2 6 1778 220 56,390 40,958 16,316 2 6 1779 206 55,194 29,367 15,287 0 0 1780 181 48,315 19,885 13,445 12 6 1781 135 33,992 16,593 9,613 15 6
Totals 2,186 550,943 378,347 Ј165,463 14 0
Sea-sticks 378,347 Bounty, at a medium, for each barrel of sea-sticks, Ј 0 8 2ј But a barrel of sea-sticks being only reckoned two thirds of a barrel fully packed, one third to be deducted, which №/іdeducted 126,115 brings the bounty to Ј 0 12 3ѕ Barrels fully packed 252,231
And if the herrings are exported, there is besides a premium of Ј 0 2 8 So the bounty paid by government in money for each barrel is Ј 0 14 11ѕ
But if to this, the duty of the salt usually taken credit for as expended in curing each barrel, which at a medium, is, of foreign, one bushel and one- fourth of a bushel, at 10s. a-bushel, be added, viz 0 12 6 the bounty on each barrel would amount to Ј 1 7 5ѕ
If the herrings are cured with British salt, it will stand thus, viz. Bounty as before Ј 0 14 11ѕ But if to this bounty, the duty on two bushels of Scotch salt, at 1s.6d. per bushel, supposed to be the quantity, at a medium, used in curing each barrel is added, viz. 0 3 0 The bounty on each barrel will amount to Ј 0 17 11ѕ
And when buss herrings are entered for home consumption in Scotland, and pay the shilling a barrel of duty, the bounty stands thus, to wit, as before Ј 0 12 3ѕ From which the shilling a barrel is to be deducted 0 1 0 Ј 0 11 3ѕ
But to that there is to be added again, the duty of the foreign salt used curing a barrel of herring viz 0 12 6 So that the premium allowed for each barrel of her- rings entered for home consumption is Ј 1 3 9ѕ
If the herrings are cured in British salt, it will stand as follows viz. Bounty on each barrel brought in by the busses, as above Ј 0 12 3ѕ From which deduct 1s. a-barrel, paid at the time they are entered for home consumption 0 1 0 Ј 0 11 3ѕ